Why do you cry when your sad? :

Crying or weeping (psychic tears): The third category, generally referred to as crying or weeping, is increased lacrimation due to strong emotional stress, suffering or physical pain. This practice is not restricted to negative emotions; ma…

http://wiki.answers.com/Q/Why_do_people_cry_when_they_are_sad

This is why: The orbicularis oculi muscle and the oculomotor nerve control the opening and closing of the eyelid causes tears. These organs produce a salty fluid that washes over your eyes every time you blink, keeping them moist and free o…

http://answers.yahoo.com/question/index?qid=20090103002306AAjtZz9

Humans have lacrimal, or tear, glands on the underside of their upper eyelids. These organs produce a salty fluid that washes over your eyes every time you blink, keeping them moist and free of irritating particles. Crying communicates you…

http://findarticles.com/p/articles/mi_m1590/is_3_64/ai_n27391235/

Related Questions Answered on Y!Answers

Why do we cry when we are sad when tears clean your eyes?

Q: Ok well i know that tears are meant to clean our eyes but why is it that we clean when we are sad?Ok, well i know that tears actually clean your eyes so why is it that we cry when we are sad? Being sad and cleaning your eyes have like nothing in common.

A: its because when we are sad our facial muscle’s shape become distorted therefore squeezing the tear glands..

Why is it that when your sad you cry and somehow after you cry you feel better?

Q: Am I the only one that feels this way?

A: Crying is a more complicated process than one would at first imagine. First of all, there are really three different types of tears. Basal tears keep our eyes lubricated constantly. Reflex tears are produced when our eyes get irritated, like with onions or when something gets into our eyes. The third kind of tear is produced when the body reacts emotionally to something. Each type of tear contains different amounts of chemical proteins and hormones. Scientists have discovered that the emotional tears contain higher levels of manganese and the hormone prolactin, and this contributes in a reduction of both of these in the body; thus helping to keep depression away. Many people have found that crying actually calms them after being upset, and this is in part due to the chemicals and hormones that are released in the tears. How then actually do we cry? The psychic tears (or emotional tears) require an emotional response, or trigger to be activated. This response can be caused by an outside source, either pain or loss of love, etc., or from an inside source (self-realization of one’s life and others). When emotions affect us, the nervous system stimulates the cranial nerve, in the brain and this sends signals to the neurotransmitters to the tear glands. Thus, we cry .The largest tear gland, the lacrimal gland produces the tears of emotion and reflex. Many believe that the body, in times of emotional stress, depends on this gland to release excess amounts of chemicals and hormones, returning it to a stable state.

Why do you cry when your sad?

Q: Why do actual tears come out of eyes when we are sad?

A: The emotional right side of your brain sends signals out to make your eyes’ tear glands secrete a salty tasting liquid …..